Corrosion behaviour of niobium in phosphate buffered saline solutions with different concentrations of bovine serum albumin
作者： Wei Wang , Farzad Mohammadi , Akram Alfantazi
DOI: 10.1016/J.CORSCI.2011.12.039
关键词: X-ray photoelectron spectroscopy 、 Phosphate buffered saline 、 Analytical chemistry 、 Bovine serum albumin 、 Niobium 、 Corrosion 、 Polarization (electrochemistry) 、 Adsorption 、 Open-circuit voltage 、 Nuclear chemistry 、 Materials science
摘要: Abstract The corrosion behaviour of Nb was studied in phosphate buffered saline (PBS) solutions at a presence 0–6 g L −1 bovine serum albumin (BSA). Addition BSA to PBS lowered the open circuit potential (OCP). OCP, polarization resistance and impedance increased over immersion time. adsorption process on surface found be faster than that PO 4 3− . According X-ray Photoelectron Spectroscopy (XPS) competitive between effect during process. Based analysis effective capacitances, distribution time-constants proposed.
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